Initial commit: Better-Seewo EN5 plugin v1.0.1

Better-EN5/Services/IConversionService.cs

@@ -0,0 +1,11 @@
+using System.Threading.Tasks;
+
+namespace BetterEN5.Services
+{
+    public interface IConversionService
+    {
+        Task<string> ConvertPptxToEnbxAsync(string pptxPath);
+        Task<string> ConvertEnbxToPptxAsync(string enbxPath);
+        Task FixConversionErrorsAsync();
+    }
+}